//
//  NSObject+IcangMutable.h
//  Icang4IphoneApp
//
//  Created by shanbei ios on 12-9-10.
//  Copyright (c) 2012年 Icang ios. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSMutableArray (XinDong)

- (void)addSafeObject:(id)anObject;
- (void)insertSafeObject:(id)anObject atIndex:(NSUInteger)index;

@end

@interface NSMutableSet (XinDong)

- (void)addSafeObject:(id)anObject;

@end
